Initial commit

Initial commit. Contains digger head, sand digger, builder, controller,
pusher, structure node, light, inventory, and digtron core crafting
item.

1 files changed, 147 insertions, 0 deletions

diff --git a/node_diggers.lua b/node_diggers.lua
new file mode 100644
index 0000000..f2ffdff
--- /dev/null
+++ b/node_diggers.lua
@@ -0,0 +1,147 @@
+-- Note: diggers go in group 3 and have an execute_dig method.
+
+local digger_nodebox = {
+	{-0.5, -0.5, 0, 0.5, 0.5, 0.4375}, -- Block
+	{-0.4375, -0.3125, 0.4375, 0.4375, 0.3125, 0.5}, -- Cutter1
+	{-0.3125, -0.4375, 0.4375, 0.3125, 0.4375, 0.5}, -- Cutter2
+	{-0.5, -0.125, -0.125, 0.5, 0.125, 0}, -- BackFrame1
+	{-0.125, -0.5, -0.125, 0.125, 0.5, 0}, -- BackFrame2
+	{-0.25, -0.25, -0.5, 0.25, 0.25, 0}, -- Drive
+}
+
+-- Digs out nodes that are "in front" of the digger head.
+minetest.register_node("digtron:digger", {
+	description = "Digger Head",
+	groups = {cracky = 3, stone = 1, digtron = 3},
+	drop = 'digtron:digger',
+	paramtype = "light",
+	paramtype2= 'facedir',
+	
+	drawtype="nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = digger_nodebox,
+	},
+	
+	-- Aims in the +Z direction by default
+	tiles = {
+		"digtron_plate.png^[transformR90",
+		"digtron_plate.png^[transformR270",
+		"digtron_plate.png",
+		"digtron_plate.png^[transformR180",
+		{
+			name = "digtron_digger.png",
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 1.0,
+			},
+		},
+		"digtron_motor.png",
+	},
+	
+	on_construct = function(pos)
+        local meta = minetest.env:get_meta(pos)
+        meta:set_string("formspec",
+			"size[3.5,1]" ..
+			default.gui_bg ..
+			default.gui_bg_img ..
+			default.gui_slots ..
+			"field[0.5,0.8;1,0.1;period;Periodicity;${period}]" ..
+			"tooltip[period;Digger will dig once every n steps. These steps are globally aligned, all diggers with the same period and offset will dig on the same location.]" ..
+			"field[1.5,0.8;1,0.1;offset;Offset;${offset}]" ..
+			"tooltip[offset;Offsets the start of periodicity counting by this amount. For example, a digger with period 2 and offset 0 digs every even-numbered node and one with period 2 and offset 1 digs every odd-numbered node.]" ..
+			"button_exit[2.2,0.5;1,0.1;set;Save]" ..
+			"tooltip[set;Saves settings]"
+		)
+		meta:set_string("period", 1) 
+		meta:set_string("offset", 0) 
+				
+		local inv = meta:get_inventory()
+		inv:set_size("main", 1)
+    end,
+	
+	on_receive_fields = function(pos, formname, fields, sender)
+        local meta = minetest.get_meta(pos)
+		local period = tonumber(fields.period)
+		local offset = tonumber(fields.offset)
+		if  period and period > 0 then
+			meta:set_string("period", math.floor(tonumber(fields.period)))
+		end
+		if offset then
+			meta:set_string("offset", math.floor(tonumber(fields.offset)))
+		end
+	end,
+
+	execute_dig = function(pos, protected_nodes, nodes_dug, controlling_coordinate)
+		local facing = minetest.get_node(pos).param2
+		local digpos = digtron.find_new_pos(pos, facing)
+
+		if protected_nodes:get(digpos.x, digpos.y, digpos.z) then
+			return nil
+		end
+		
+		local meta = minetest.get_meta(pos)
+		if (digpos[controlling_coordinate] + meta:get_string("offset")) % meta:get_string("period") ~= 0 then
+			return nil
+		end
+		
+		return digtron.mark_diggable(digpos, nodes_dug)
+	end,
+})
+
+-- A special-purpose digger to deal with stuff like sand and gravel in the ceiling. It always digs (no periodicity or offset), but it only digs falling_block nodes
+minetest.register_node("digtron:sand_digger", {
+	description = "Sand Digger Head",
+	groups = {cracky = 3, stone = 1, digtron = 3},
+	drop = 'digtron:sand_digger',
+	paramtype = "light",
+	paramtype2= 'facedir',
+	
+	drawtype="nodebox",
+	node_box = {
+		type = "fixed",
+		fixed = digger_nodebox,
+	},
+	
+	-- Aims in the +Z direction by default
+	tiles = {
+		"digtron_plate.png^[transformR90^[colorize:#88880030",
+		"digtron_plate.png^[transformR270^[colorize:#88880030",
+		"digtron_plate.png^[colorize:#88880030",
+		"digtron_plate.png^[transformR180^[colorize:#88880030",
+		{
+			name = "digtron_digger.png^[colorize:#88880030",
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 16,
+				aspect_h = 16,
+				length = 1.0,
+			},
+		},
+		"digtron_motor.png^[colorize:#88880030",
+	},
+	
+	can_dig = function(pos,player)
+		local meta = minetest.get_meta(pos)
+		local inv = meta:get_inventory()
+		return inv:is_empty("main") and inv:is_empty("inv")
+	end,
+	
+	execute_dig = function(pos, protected_nodes, nodes_dug, controlling_coordinate)
+		local facing = minetest.get_node(pos).param2
+		local digpos = digtron.find_new_pos(pos, facing)
+		
+		if protected_nodes:get(digpos.x, digpos.y, digpos.z) then
+			return nil
+		end
+		
+		local target_node = minetest.get_node(digpos)
+		if minetest.get_item_group(target_node.name, "falling_node") ~= 0 then
+			return digtron.mark_diggable(digpos, nodes_dug)
+		end
+		
+		return nil
+	end,
+})
\ No newline at end of file